lol hot, I don't understand any of it, but it seems like Japanese people have absolutely no morals. from what I can tell she walks in on him masturbating, he tells her to suck his cock, so she does? no hesitation? no blackmail?

Well, after she accidentally walked in, she couldn't let him down, could she? She HAD to show him the way a girl pleases a boy, right down to taking all he had to give in her mouth. The next lesson, she'll likely swallow all of it, then suck him frantically to make sure she got it ALL.